I think it's pretty clear that the internet as a whole has not had a strong notion of identity. And identity means, 'Who am I?' Fundamentally, what Facebook has done has built a way to figure out who people are...

I think of Google as a set of overlapping things. It's a consumer platform, consumer phenomenon of which search is its fundamental activity, but there are many other things you can do than search... I think of Google as an advertising company who services the broader advertising industry in the ways that you know.

Remember, when you go to YouTube, you do a search. When you go to Google, you do a search. As we get the search integrated between YouTube and Google, which we're working on, it will drive a lot of traffic into both places. So the trick, overall, is generating more searches, more uses of Google.

Every two days now we create as much information as we did from the dawn of civilization up until 2003.

In a world where everything is remembered and everything is kept forever, you need to live for the future and things you really care about.

In a networked world, trust is the most important currency.

The coach doesn't have to play the sport as well as you do. They have to watch you and get you to be your best.